I guess this should be quite a simple thing but I just can’t seem to figure out. What I am hoping to do is that after I click on a first button say button “ONE”, it changes colour from white to** red** and when I click on the next button, button “TWO”, button “One” reverts back to white while button “TWO” becomes red…
Can anyone let me know in order to do that, which coding must I include? And is it to be included in the “DOWN” state of a button?
Appreciate your help in advance.